Diversion cooling device of magnetic stimulation coil

Abstract

The utility model relates to the technical field of coil cooling equipment, in particular to a diversion cooling device of a magnetic stimulation coil. Comprising a hollow shell, a flow guide cooling mechanism is arranged in the shell, the flow guide cooling mechanism comprises a first cover body and a second cover body, the first cover body and the second cover body are detachably connected, and corresponding through grooves are formed in the sides, close to each other, of the first cover body and the second cover body; the through groove of the first cover body and the through groove of the second cover body form a containing space after the first cover body and the second cover body are in butt joint, and a magnetic stimulation coil is arranged in the containing space. The magnetic stimulation coil is placed in the containing space formed after the first cover body and the second cover body are in butt joint, then the first cover body and the second cover body are placed in the shell, the first cover body and the second cover body protect other parts in the flow guide cooling mechanism, and when the shell is collided, only the shell needs to be replaced, so that the operation is convenient. And the diversion cooling mechanism can be put into use again.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coil cooling equipment especially relates to a magnetic stimulation coil's flow guide cooling device. BACKGROUND

[0002] Neural modulation is a biomedical engineering technology that uses implantable or non-implantable technology to change the activity of the nervous system through electrical stimulation or drug means to improve the symptoms of patients and improve the quality of life. The commonly used technologies include: invasive technology, such as deep brain stimulation; non-invasive stimulation, such as transcranial magnetic stimulation. Transcranial magnetic stimulation has the advantages of non-invasiveness and direct regulation of the nervous system, and has received more and more widespread attention.

[0003] Transcranial magnetic stimulation is to use alternating pulse magnetic field to act on the central nervous system, change the membrane potential of cortical nerve cells, produce induced current, affect brain metabolism and neural electrical activity, and cause a series of biochemical and physiological reactions.

[0004] The magnetic stimulation coil is a key component of the transcranial magnetic stimulation device, which plays an important role in the formation of intracranial electric field. The magnetic field intensity range of the current magnetic stimulation coil is concentrated, and because the current intensity in the magnetic stimulation coil is very large, it is easy to produce overheating effect. At this time, the magnetic stimulation coil needs to be cooled, and the magnetic stimulation coil in the existing cooling device is heavy, and is easy to be knocked during use. The cooling device that is knocked is easy to leak, which cannot be used again. SUMMARY

[0005] In order to solve the problem that the magnetic stimulation coil in the existing cooling device is easy to be knocked, which leads to the problem that it cannot be used again and increases the production cost, the utility model provides a magnetic stimulation coil's flow guide cooling device, which places the magnetic stimulation coil in the accommodating space formed after the abutment of the first cover body and the second cover body, and then places the first cover body and the second cover body in the shell. The first cover body and the second cover body protect other components in the flow guide cooling mechanism. When the shell is knocked, only the shell needs to be replaced, and the flow guide cooling mechanism can be used again.

[0006] In order to achieve the above purpose, the technical scheme of the utility model is:

[0007] A flow-conducting cooling device for a magnetic stimulation coil includes a hollow housing with a flow-conducting cooling mechanism disposed therein. The flow-conducting cooling mechanism comprises a first cover and a second cover, the first and second covers being detachably connected. Corresponding through-slots are defined on the sides of the first and second covers adjacent to each other. The through-slots in the first and second covers form a receiving space when the first and second covers are joined, and the receiving space is provided with a magnetic stimulation coil. The first and second covers are detachably connected by bolts, and the flow-conducting cooling mechanism is placed within the housing for protection. Epoxy resin is filled between the flow-conducting cooling mechanism and the housing to further enhance the risk resistance of the flow-conducting cooling mechanism.

[0008] Furthermore, the diversion cooling mechanism also includes a diversion channel, a liquid inlet pipe, and a liquid outlet pipe. The diversion channel is the gap between the outer wall of the magnetic stimulation coil and the outer wall of the accommodation space. The diversion channel is provided with a liquid inlet and a liquid outlet. The liquid inlet is connected to the liquid inlet pipe passing through the second cover body, and the liquid outlet is connected to the liquid outlet pipe passing through the second cover body. The diversion channel is evenly provided with a plurality of guide vanes, which are arranged at an angle along the direction of liquid flow. The upstream end of each guide vane is close to the outside of the diversion channel, and the downstream end is close to the inside of the diversion channel. A gap is formed between the guide vane and the outer wall of the magnetic stimulation coil. The guide vanes divert the coolant in the diversion channel, allowing the coolant to contact the magnetic stimulation coil more quickly, thereby improving the cooling effect. The guide vanes also extend the residence time of the coolant in the diversion channel, thereby improving the cooling effect.

[0009] Furthermore, the diversion channel is annular.

[0010] Furthermore, the cross section of the guide vane is arc-shaped.

[0011] Furthermore, a baffle is provided in the guide channel, and the baffle is located between the liquid inlet and the liquid outlet to separate the guide channel.

[0012] Furthermore, a first annular placement groove is correspondingly provided on one side of the first cover body and the second cover body that contacts each other, and a first sealing ring is placed in the first placement groove to prevent leakage of the coolant.

[0013] Furthermore, a limiting cylinder is fixed in the middle of the second cover, the magnetic stimulation coil is sleeved on the outside of the limiting cylinder, and the outer wall of the magnetic stimulation coil abuts against the end of the baffle. The limiting cylinder limits the magnetic stimulation coil in the accommodating space.

[0014] Furthermore, the limiting cylinder is fixedly connected to the first cover body by bolts, and a second annular placement groove is correspondingly opened on the side of the limiting cylinder that contacts the first cover body, and a second sealing ring is placed in the second placement groove to prevent leakage of the coolant.

[0015] Furthermore, the end of the limiting cylinder extends out of the first cover body and the second cover body and is flush with the end surfaces of the first cover body and the second cover body.

[0016] Furthermore, a cylinder is fixed in the middle of the inner cavity of the shell, the cylinder is located inside the limiting cylinder, and the end of the cylinder extends out of the shell and is flush with the end surface of the shell.

[0017] Through the above technical solution, the beneficial effects of the utility model are:

[0018] 1. The utility model places the magnetic stimulation coil in the accommodation space formed by the docking of the first cover and the second cover, and then places the first cover and the second cover in the shell. The first cover and the second cover protect other components in the diversion cooling mechanism. At the same time, epoxy resin is filled between the first cover, the second cover and the shell to further improve the risk resistance of the diversion cooling mechanism. When the shell is bumped, only the shell needs to be replaced and the diversion cooling mechanism can be put into use again.

[0019] 2. The utility model introduces coolant into the guide channel through the liquid inlet pipe to cool the running magnetic stimulation coil, and then the coolant in the guide channel flows out through the liquid outlet pipe to circulate and cool the magnetic stimulation coil. The guide blades arranged in the guide channel divert the coolant in the guide channel, so that the coolant can contact the magnetic stimulation coil faster, thereby improving the cooling effect. The guide blades can also prolong the residence time of the coolant in the guide channel, thereby improving the cooling effect.

[0020] 3. The first sealing ring and the second sealing ring provided on the first cover and the second cover in the housing of the present invention can strengthen the sealing of the coolant and increase the service life of the magnetic stimulation coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a housing of a flow-conducting cooling device for a magnetic stimulation coil according to the present invention;

[0022] Figure 2 This is a structural schematic diagram of a first cover and a second cover of a flow-conducting cooling device for a magnetic stimulation coil according to the present invention;

[0023] Figure 3 The utility model is a flow-conducting cooling device for a magnetic stimulation coil. Figure 2 A schematic structural diagram of the first cover body hidden in the figure;

[0024] Figure 4 The utility model is a flow-conducting cooling device for a magnetic stimulation coil. Figure 3 Schematic diagram of the structure placed in a partial shell;

[0025] Figure 5This is a schematic structural diagram of the connection between a magnetic stimulation coil and an external wire in a flow-conducting cooling device for a magnetic stimulation coil according to the present invention;

[0026] Figure 6 This is a structural schematic diagram of a partial shell of a flow-conducting cooling device for a magnetic stimulation coil according to the present invention.

[0027] The numbers in the accompanying drawings are: 1 is the first cover body, 2 is the second cover body, 3 is the magnetic stimulation coil, 4 is the guide channel, 5 is the baffle, 6 is the liquid inlet pipe, 7 is the liquid outlet pipe, 8 is the guide blade, 9 is the first sealing ring, 10 is the limiting cylinder, 11 is the second sealing ring, 12 is the cylinder body, 20 is the shell, 21 is the wire, 22 is the terminal, 23 is the connecting part, and 24 is the tail ring. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] like Figures 1-6 As shown, this embodiment provides a flow-conducting cooling device for a magnetic stimulation coil, comprising a hollow shell 20, wherein a flow-conducting cooling mechanism is provided inside the shell 20; in this embodiment, when the flow-conducting cooling mechanism is placed in the shell 20, epoxy resin is filled between the flow-conducting cooling mechanism and the shell 20. Since the magnetic stimulation coil 3 is heavy, it is easy to fall during use or movement, causing the shell to bump, and the flow-conducting cooling mechanism is separated from the shell 20 to avoid damage to the internal flow-conducting cooling mechanism and protect the flow-conducting cooling mechanism. When the shell 20 is damaged, only the shell 20 needs to be replaced.

[0030] The housing 20 is formed by assembling and welding an upper housing and a lower housing that are symmetrical in vertical direction, and then connected to the tail ends of the handles of the upper housing and the lower housing through a tail ring 24 to further fix the upper housing and the lower housing.

[0031] Specifically, the diversion cooling mechanism includes a first cover body 1 and a second cover body 2, and the first cover body 1 and the second cover body 2 are detachably connected by bolts. A through groove is provided on the side where the first cover body 1 and the second cover body 2 are close to each other. The through grooves of the first cover body 1 and the second cover body 2 form an accommodating space after the first cover body 1 and the second cover body 2 are docked, and a magnetic stimulation coil 3 is provided in the accommodating space.

[0032] Furthermore, the diversion cooling mechanism also includes a diversion channel 4, a liquid inlet pipe 6 and a liquid outlet pipe 7. The diversion channel 4 is the gap between the outer wall of the magnetic stimulation coil 3 and the outer wall of the accommodating space. The diversion channel 4 is annular and is provided with a liquid inlet and a liquid outlet. The liquid inlet is connected to the liquid inlet pipe 6 passing through the second cover body 2, and the liquid outlet is connected to the liquid outlet pipe 7 passing through the second cover body 2.

[0033] In the embodiment, the two ends of the magnetic stimulation coil 3 are connected together through the welding sheet and the connecting part 23 welded with the one end of the liquid inlet pipe 6 and the liquid outlet pipe 7 extending into the containing space, the liquid inlet pipe 6, the liquid outlet pipe 7 and the connecting part 23 are made of conductive material (red copper), the one end of the liquid inlet pipe 6 and the liquid outlet pipe 7 extending out of the containing space is connected to the positive and negative lead wires 21 through the terminal post 22 respectively; in addition to the above, the other components in the embodiment are made of high-strength insulating material (nylon), and the cooling liquid flowing into the liquid inlet pipe 6 is silicon oil or propylene glycol, which is an insulating medium.

[0034] A plurality of guide vanes 8 are uniformly arranged in the guide channel 4, the guide vanes 8 are arranged obliquely along the flow direction of the liquid, the upstream end of each guide vane 8 is close to the outer side of the guide channel 4, the downstream end is close to the inner side of the guide channel 4, and there is a gap between the guide vane 8 and the outer side wall of the magnetic stimulation coil 3; in the embodiment, the cross section of the guide vane 8 is arc-shaped.

[0035] Further, the guide channel 4 is provided with a baffle 5, the baffle 5 is located between the liquid inlet and the liquid outlet, and the guide channel 4 is divided by the baffle 5. It is guaranteed that the cooling liquid in the liquid inlet pipe 6 flows out through the liquid outlet pipe 7 after passing through the annular guide channel 4.

[0036] As an implementable manner, in order to guarantee the sealing performance of the guide cooling device, a first placing groove is arranged in the side of the first cover body 1 and the second cover body 2 in contact with each other, and a first sealing ring 9 is placed in the first placing groove; the middle part of the second cover body 2 is fixed with a limiting cylinder 10, the magnetic stimulation coil 3 is sleeved outside the limiting cylinder 10, the outer side wall of the magnetic stimulation coil 3 abuts against the end part of the baffle 5, the limiting cylinder 10 is fixed and connected with the first cover body 1 through bolts, and a second placing groove is arranged in the side of the limiting cylinder 10 and the first cover body 10 in contact with each other, and a second sealing ring 11 is placed in the second placing groove. The first sealing ring 9 and the second sealing ring 11 are the first layer of sealing for the cooling liquid, the shell 20 is the second layer of sealing for the cooling liquid, and the normal service life of the magnetic stimulation coil 3 is improved.

[0037] As an implementable manner, the end part of the limiting cylinder 10 extends out of the first cover body 1 and the second cover body 2 and is flush with the end face of the first cover body 1 and the second cover body 2, the inner cavity of the shell 20 is fixed with a cylinder body 12 in the middle part, the cylinder body 12 is located inside the limiting cylinder 10, and the end part of the cylinder body 12 extends out of the shell 20 and is flush with the end face of the shell 20. It is convenient to limit the guide cooling device to a fixed position in the shell 20, and the stability of the guide cooling device is guaranteed.

[0038] When the magnetic stimulation coil 3 is overheated in the energized state, cooling liquid is introduced into the liquid inlet pipe 6, the cooling liquid enters the annular flow channel 4 through the liquid inlet, and the cooling liquid is guided through the multiple flow guide vanes 8 arranged in the circumferential direction of the flow channel 4, so that the cooling liquid can contact the magnetic stimulation coil 3 more quickly and take away more heat, the cooling liquid circulating for one cycle flows into the liquid outlet pipe 7 through the liquid outlet, taking away the heat in the magnetic stimulation coil 3, reducing the heat of the magnetic stimulation coil 3, and ensuring the normal operation of the magnetic stimulation coil 3; When the flow guiding and cooling device of the magnetic stimulation coil is damaged due to collision, the flow guiding and cooling mechanism in the shell 20 can still be used under the buffering of the epoxy resin and the shell 20, at this time, only a new shell 20 needs to be replaced to be used again.

[0039] The above-described embodiments are only preferred embodiments of the present application, and are not intended to limit the scope of the present application. Therefore, equivalent changes or modifications made in accordance with the structure, features and principles described in the patent range of the present application should be included in the patent range of the present application.

Claims

1. A flow-conducting cooling device for a magnetic stimulation coil, characterized in that: The invention comprises a hollow shell (20), wherein a flow-conducting cooling mechanism is provided inside the shell (20), and the flow-conducting cooling mechanism comprises a first cover body (1) and a second cover body (2), wherein the first cover body (1) and the second cover body (2) are detachably connected, and a through groove is provided on the side where the first cover body (1) and the second cover body (2) are close to each other, and the through grooves of the first cover body (1) and the second cover body (2) form a receiving space after the first cover body (1) and the second cover body (2) are docked, and a magnetic stimulation coil (3) is provided in the receiving space.

2. The flow-conducting cooling device for a magnetic stimulation coil according to claim 1, characterized in that: A first annular placement groove is correspondingly provided on the contacting side of the first cover body (1) and the second cover body (2), and a first sealing ring (9) is placed in the first placement groove.

3. The flow-conducting cooling device for a magnetic stimulation coil according to claim 1, characterized in that: The diversion cooling mechanism further comprises a diversion channel (4), a liquid inlet pipe (6) and a liquid outlet pipe (7); the diversion channel (4) is the interval between the outer wall of the magnetic stimulation coil (3) and the outer wall of the accommodating space; the diversion channel (4) is provided with a liquid inlet and a liquid outlet; the liquid inlet is communicated with the liquid inlet pipe (6) passing through the second cover body (2); and the liquid outlet is communicated with the liquid outlet pipe (7) passing through the second cover body (2); A plurality of guide blades (8) are evenly arranged in the guide channel (4), and the guide blades (8) are arranged obliquely along the flow direction of the liquid. The upstream end of each guide blade (8) is close to the outside of the guide channel (4), and the downstream end is close to the inside of the guide channel (4). There is a gap between the guide blade (8) and the outer wall of the magnetic stimulation coil (3).

4. The flow-conducting cooling device for a magnetic stimulation coil according to claim 3, characterized in that: The guide channel (4) is annular.

5. The flow-conducting cooling device for a magnetic stimulation coil according to claim 3, characterized in that: The cross section of the guide blade (8) is arc-shaped.

6. The flow-conducting cooling device for a magnetic stimulation coil according to claim 3, characterized in that: A baffle (5) is provided in the guide channel (4); the baffle (5) is located between the liquid inlet and the liquid outlet, and separates the guide channel (4).

7. The flow-conducting cooling device for a magnetic stimulation coil according to claim 6, characterized in that: A limiting cylinder (10) is fixed in the middle of the second cover body (2), the magnetic stimulation coil (3) is sleeved on the outside of the limiting cylinder (10), and the outer wall of the magnetic stimulation coil (3) abuts against the end of the baffle (5).

8. The flow-conducting cooling device for a magnetic stimulation coil according to claim 7, characterized in that: The limiting cylinder (10) is fixedly connected to the first cover body (1) by bolts, and a second annular placement groove is correspondingly provided on the side of the limiting cylinder (10) in contact with the first cover body (1), and a second sealing ring (11) is placed in the second placement groove.

9. The flow-conducting cooling device for a magnetic stimulation coil according to claim 7, characterized in that: The end of the limiting cylinder (10) extends out of the first cover body (1) and the second cover body (2) and is flush with the end surfaces of the first cover body (1) and the second cover body (2).

10. The flow-conducting cooling device for a magnetic stimulation coil according to claim 9, characterized in that: A cylinder (12) is fixed in the middle of the inner cavity of the shell (20), the cylinder (12) is located inside the limiting cylinder (10), and the end of the cylinder (12) extends out of the shell (20) and is flush with the end surface of the shell (20).

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